Nissan Qashqai J11. Manual — part 187
ECH-46
< SYSTEM DESCRIPTION >
[HRA2DDT]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
ON BOARD DIAGNOSTIC (OBD) SYSTEM
Diagnosis Description
INFOID:0000000010379035
This system is an on board diagnostic system that records exhaust emission-related diagnostic information
and detects a sensors/actuator-related malfunction. A malfunction is indicated by the malfunction indicator
(MIL) and stored in ECU memory as a DTC. The diagnostic information can be obtained with the diagnostic
tool (GST: Generic Scan Tool).
NOTE:
OBD is not applied for regions where it is not mandated.
MALFUNCTION INDICATOR LAMP
When detecting a DTC that affects exhaust gas, the exhaust emis-
sion-related control module transmits a malfunction indicator signal
to ECM via CAN communication line.
ECM prioritizes the signal received from the exhaust emission-
related control module and the ECM-stored DTC that affects exhaust
gas and transmits a malfunction indicator lamp signal to the combi-
nation meter via CAN communication line.
The combination meter turns ON the MIL, according to the signal
transmitted from ECM, and alerts the driver of malfunction detection.
JPNIA1882ZZ
DIAGNOSIS SYSTEM (ECM)
ECH-47
< SYSTEM DESCRIPTION >
[HRA2DDT]
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DIAGNOSIS SYSTEM (ECM)
CONSULT Function
INFOID:0000000010379036
FUNCTION
*: The following emission-related diagnostic information is cleared when the ECM memory is erased.
• Diagnostic trouble codes
SELF DIAGNOSTIC RESULT MODE
Self Diagnostic Item
Regarding items detected in “SELF-DIAG RESULTS” mode, refer to
.
How to Erase DTC
With CONSULT
NOTE:
If the ignition switch stays ON after repair work, be sure to turn ignition switch OFF once. Wait at least 12 min-
utes and then turn it ON (engine stopped) again.
1.
Select “ENGINE” with CONSULT.
2.
Select “SELF-DIAG RESULTS”.
3.
Touch “ERASE”. (DTC in ECM will be erased)
Freeze Frame Data and 1st Trip Freeze Frame Data
Diagnostic test mode
Function
Self Diagnostic Result
Self-diagnostic results such as DTC can be read and erased quickly.*
Data Monitor
Input/Output data in the ECM can be read.
Work support
This mode enables a technician to adjust some devices faster and more accurately by following
the indications on the CONSULT unit.
Active Test
Diagnostic Test Mode in which CONSULT drives some actuators apart from the ECMs and also
shifts some parameters in a specified range.
ECU Identification
ECM part number and homologation number can be read.
Item
*
Unit
Remarks
CONSULT screen terms
Full spell
GDI - Fuel Rail Pressure
GDI - Fuel Rail Pressure
bar
FUEL RAIL PRESSURE
SETPOINT
Fuel rail pressure set-point
bar
ENG OIL TEMP
Oil temperature - engine
°
C
ENGINE STATUS
Engine status
—
• Ignition ON and engine stopped.
• engine driven
• Engine Stalled
• engine autonomous
IVT CONTROL SOL VALVE
POSITION SETPOINT
Intake valve timing control solenoid
valve position set-point
°
Crk
IVT CONTROL SOL VALVE
POSITION
Intake valve timing control solenoid
valve position
°
Crk
IVT CONTROL SOL VALVE
PWM
Intake valve timing control solenoid
valve pulse width modulation
%
EVT CONTROL SOL VALVE
PWM
Exhaust valve timing control solenoid
valve pulse width modulation
%
EVT CONTROL SOL VALVE
POSITION
Exhaust valve timing control solenoid
valve position
°
Crk
EVT CONTROL SOL VALVE
POSITION SETPOINT
Exhaust valve timing control solenoid
valve position set-point
°
Crk
ECH-48
< SYSTEM DESCRIPTION >
[HRA2DDT]
DIAGNOSIS SYSTEM (ECM)
COMPARE CAMSHAFT PO-
SITION AND EEPROM
Compare exhaust camshaft and electri-
cally erasable programmable read-only
memory
—
• NO VALUE
• MATCH
Camshaft_crankshaft syn-
chronization state
Camshaft/crankshaft synchronization
state
—
• not synchronized
• SYNCED
CRANKSHAFT SYNCHRO-
NIZATION
Crankshaft synchronization
—
• NOT
• OK
CRANKSHAFT SYNCHRO-
NIZATION COUNTER
Crankshaft synchronization counter
—
INT MANI PRES
Intake manifold pressure
mbar
FILTERED EVT CONTROL
SOL VALVE POSITION
Filtered exhaust valve timing control so-
lenoid valve position
°
Crk
ENG COOLANT TEMP
Engine coolant temperature
°
C
Intake manifold temperature
Intake manifold temperature
°
C
BOOST PRESSUR
Boost pressure
mbar
CALCULATED MANIFOLD
PRESSURE
Calculated manifold pressure
hpa
OPENING ANGLE CYLIN-
DER 3
Opening angle cylinder 3
°
Crk
INTAKE AIR TEMPERA-
TURE SENSOR VOLTAGE
Intake air temperature sensor voltage
V
AMOUNT OF AIR INTO CYL-
INDER
Amount of air into cylinder
kg/h
MANIFOLD PRESSURE
VALUE FROM MODEL
Manifold pressure value from model
hpa
MANIFOLD PRESSURE
VALUE FROM SENSOR
Manifold pressure from sensor
hpa
INTAKE MANIFOLD PRES-
SURE SENSOR VOLTAGE
Intake manifold pressure sensor voltage
V
MOTOR FAN REQUEST 7
Motor fan requests 7
—
• FAN 2 CAN N/REQUEST
• FAN 2 CAN REQUEST
MOTOR FAN REQUEST 6
Motor fan requests 6
—
• FAN 1 CAN N/REQUEST
• FAN 1 CAN REQUEST
MOTOR FAN REQUEST 5
Motor fan requests 5
—
• FAN 2 N/REQUEST FROM A/T
• FAN 2 REQUEST FROM A/T
MOTOR FAN REQUEST 4
Motor fan requests 4
—
• FAN 1 N/REQUEST FROM A/T
• FAN 1 REQUEST FROM A/T
MOTOR FAN REQUEST 3
Motor fan requests 3
—
• FAN 2 N/REQUEST FROM A/C
• FAN 2 REQUEST FROM A/C
MOTOR FAN REQUEST 2
Motor fan requests 2
—
• FAN 1 N/REQUEST FROM A/C
• FAN 1 REQUEST FROM A/C
MOTOR FAN REQUEST 1
Motor fan requests 1
—
• FAN 2 N/REQUEST FROM ECM
• FAN 2 REQUEST FROM ECM
MOTOR FAN REQUEST 0
Motor fan requests 0
—
• FAN 1 N/REQUEST FROM ECM
• FAN 1 REQUEST FROM ECM
CURRENT GEAR POSITION
Current gear position
—
ENGINE COOLANT TEM-
PERATURE SEN VOLTAGE
Engine coolant temperature sensor volt-
age
V
SEN SUPPLY N-1 VOL
Sensors supply voltage 1
mV
THROTTLE VALVE POSI-
TION 1
Throttle valve position 1
%
Item
*
Unit
Remarks
CONSULT screen terms
Full spell
DIAGNOSIS SYSTEM (ECM)
ECH-49
< SYSTEM DESCRIPTION >
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THROTTLE VALVE POSI-
TION 2
Throttle valve position 2
%
Richness regulation status
Richness regulation status
—
• starting mode
• open loop mode
• full load mode
• before closed loop mode
• closed loop mode
• Richness state machine is in OBD
mode
RICHNESS REGULATIION
CORRECTION
Richness regulation correction
%
RICHNESS ADAPTATION
FACTOR
Richness adaptation factor
—
RICHNESS ADAPTATION
OFFSET
Richness adaptation offset
µ
s
FUEL SYSTEM STATUS 07
Fuel system status 07
—
FUEL SYSTEM STATUS 06
Fuel system status 06
—
FUEL SYSTEM STATUS 05
Fuel system status 05
—
FUEL SYSTEM STATUS 04
Fuel system status 04
—
FUEL SYSTEM STATUS 03
Fuel system status 03
—
FUEL SYSTEM STATUS 02
Fuel system status 02
—
FUEL SYSTEM STATUS 01
Fuel system status 01
—
FUEL SYSTEM STATUS 00
Fuel system status 00
—
FUEL SYSTEM STATUS 15
Fuel system status 15
—
FUEL SYSTEM STATUS 14
Fuel system status 14
—
FUEL SYSTEM STATUS 13
Fuel system status 13
—
FUEL SYSTEM STATUS 12
Fuel system status 12
—
FUEL SYSTEM STATUS 11
Fuel system status 11
—
FUEL SYSTEM STATUS 10
Fuel system status 10
—
FUEL SYSTEM STATUS 09
Fuel system status 09
—
FUEL SYSTEM STATUS 08
Fuel system status 08
—
ATMOSPHERIC PRESSURE
Atmospheric pressure
mbar
BOOST PRES SEN V
Boost pressure sensor voltage
V
Catalyst exhaust gas up-
stream oxygen sensor volt-
age
Catalyst exhaust gas upstream oxygen
sensor voltage
mV
HEATED OXYGEN SENSOR
1 PWM
Heated oxygen sensor 1 pulse width
modulation
%
HEATED OXYGEN SENSOR
1 ACTIVATION TIME
Heated oxygen sensor 1 activation time
TDC
HEATED OXYGEN SENSOR
2 VOLTAGE
Heated oxygen sensor 2 voltage
mV
HEATED OXYGEN SENSOR
2 PWM
Heated oxygen sensor 2 pulse width
modulation
%
HEATED OXYGEN SENSOR
HEATER STATE
Heated oxygen sensor heater state
—
• COLD SENSOR
• START STRATEGY APPLIED
• RESTRT
CRRCTV FACTOR DE-
PENDING ON FUEL QUAN-
TITY
Corrective factor depending on fuel
quantity
—
Item
*
Unit
Remarks
CONSULT screen terms
Full spell
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